the hamann fits on a e46 m3, and the 323 ci, but not sure about 323i. but it should fit. and the m3 e46 one should sound good too. besides. the m3 ones are chrome'er
look at the HKS ones, i dont have a site, but google HKS exaust 323i, and google hamann exaust 323i

ive been looking at eisenmann exhausts because ive heard they make bmw's sound like ferraris im looking for something that will give it a nice ear shattering throaty powerful sound. that sounds good when you rev it also.

UUC...... FTW!!! Or do a custom exhaust, straight pipes with 2 cherrybombs on the end. You will have a killer sound with either.
Here is a video with the cherry bomb, very deep toned and it pops alot.
http://www.youtube.com/watch?v=r0FeawjoGXQ
Here is the UUC. Very loud in real life.
http://www.youtube.com/watch?v=QexE86PgSCo

how can i make my 323i as fast as an m3. it has 120,000 miles on it so would it harm the car or shorten the life of it by modding it with this mileage? would an exhaust and k&n harm the engine and dec...

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